java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 10:47:26,811 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 10:47:26,813 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 10:47:26,826 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 10:47:26,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 10:47:26,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 10:47:26,828 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 10:47:26,830 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 10:47:26,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 10:47:26,832 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 10:47:26,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 10:47:26,834 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 10:47:26,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 10:47:26,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 10:47:26,837 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 10:47:26,838 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 10:47:26,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 10:47:26,840 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 10:47:26,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 10:47:26,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 10:47:26,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 10:47:26,846 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 10:47:26,849 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 10:47:26,849 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 10:47:26,849 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 10:47:26,850 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 10:47:26,851 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 10:47:26,852 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 10:47:26,853 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 10:47:26,854 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 10:47:26,854 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 10:47:26,855 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 10:47:26,855 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 10:47:26,855 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 10:47:26,856 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 10:47:26,857 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 10:47:26,857 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 10:47:26,872 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 10:47:26,873 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 10:47:26,874 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 10:47:26,874 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 10:47:26,875 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 10:47:26,875 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 10:47:26,875 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 10:47:26,875 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 10:47:26,875 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 10:47:26,876 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 10:47:26,876 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 10:47:26,876 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 10:47:26,876 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 10:47:26,876 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 10:47:26,876 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 10:47:26,877 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 10:47:26,877 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 10:47:26,877 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 10:47:26,877 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 10:47:26,877 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 10:47:26,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 10:47:26,878 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 10:47:26,878 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 10:47:26,878 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 10:47:26,878 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 10:47:26,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 10:47:26,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 10:47:26,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 10:47:26,879 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 10:47:26,879 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 10:47:26,879 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 10:47:26,880 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 10:47:26,880 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 10:47:26,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 10:47:26,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 10:47:26,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 10:47:26,944 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 10:47:26,944 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 10:47:26,945 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i [2018-11-23 10:47:27,006 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a495936bc/4144b355d7054f99833ba95256e50ca2/FLAGf1df40fdc [2018-11-23 10:47:27,529 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 10:47:27,530 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i [2018-11-23 10:47:27,541 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a495936bc/4144b355d7054f99833ba95256e50ca2/FLAGf1df40fdc [2018-11-23 10:47:27,864 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a495936bc/4144b355d7054f99833ba95256e50ca2 [2018-11-23 10:47:27,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 10:47:27,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 10:47:27,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 10:47:27,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 10:47:27,886 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 10:47:27,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:47:27" (1/1) ... [2018-11-23 10:47:27,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2690c4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:27, skipping insertion in model container [2018-11-23 10:47:27,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:47:27" (1/1) ... [2018-11-23 10:47:27,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 10:47:27,923 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 10:47:28,189 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 10:47:28,198 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 10:47:28,246 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 10:47:28,278 INFO L195 MainTranslator]: Completed translation [2018-11-23 10:47:28,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28 WrapperNode [2018-11-23 10:47:28,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 10:47:28,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 10:47:28,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 10:47:28,281 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 10:47:28,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 10:47:28,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 10:47:28,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 10:47:28,315 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 10:47:28,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... [2018-11-23 10:47:28,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 10:47:28,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 10:47:28,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 10:47:28,385 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 10:47:28,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 10:47:28,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 10:47:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 10:47:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 10:47:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 10:47:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 10:47:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 10:47:28,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 10:47:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 10:47:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 10:47:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 10:47:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 10:47:28,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 10:47:29,080 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 10:47:29,081 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 10:47:29,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:47:29 BoogieIcfgContainer [2018-11-23 10:47:29,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 10:47:29,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 10:47:29,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 10:47:29,086 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 10:47:29,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:47:27" (1/3) ... [2018-11-23 10:47:29,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23196766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:47:29, skipping insertion in model container [2018-11-23 10:47:29,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:47:28" (2/3) ... [2018-11-23 10:47:29,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23196766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:47:29, skipping insertion in model container [2018-11-23 10:47:29,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:47:29" (3/3) ... [2018-11-23 10:47:29,090 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u_true-unreach-call.i [2018-11-23 10:47:29,101 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 10:47:29,114 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 10:47:29,133 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 10:47:29,171 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 10:47:29,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 10:47:29,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 10:47:29,172 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 10:47:29,173 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 10:47:29,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 10:47:29,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 10:47:29,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 10:47:29,174 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 10:47:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-23 10:47:29,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 10:47:29,207 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:47:29,208 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:47:29,210 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:47:29,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:47:29,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1832694891, now seen corresponding path program 1 times [2018-11-23 10:47:29,221 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:47:29,222 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:47:29,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:47:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:47:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:47:29,341 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:47:29,808 INFO L256 TraceCheckUtils]: 0: Hoare triple {29#true} call ULTIMATE.init(); {29#true} is VALID [2018-11-23 10:47:29,812 INFO L273 TraceCheckUtils]: 1: Hoare triple {29#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {29#true} is VALID [2018-11-23 10:47:29,813 INFO L273 TraceCheckUtils]: 2: Hoare triple {29#true} assume true; {29#true} is VALID [2018-11-23 10:47:29,813 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {29#true} {29#true} #73#return; {29#true} is VALID [2018-11-23 10:47:29,814 INFO L256 TraceCheckUtils]: 4: Hoare triple {29#true} call #t~ret5 := main(); {29#true} is VALID [2018-11-23 10:47:29,818 INFO L273 TraceCheckUtils]: 5: Hoare triple {29#true} havoc ~i~0;havoc ~j~0;~m~0 := 1000bv32;~n~0 := 1500bv32;havoc ~q~0;havoc ~s~0;call ~#A~0.base, ~#A~0.offset := #Ultimate.alloc(~bvmul32(~bvmul32(4bv32, ~n~0), ~m~0));~C~0 := #t~nondet1;havoc #t~nondet1;~q~0 := #t~nondet2;havoc #t~nondet2;~s~0 := #t~nondet3;havoc #t~nondet3;~i~0 := 0bv32;~j~0 := 0bv32;assume 0bv32 != (if ~bvslt32(~q~0, ~m~0) then 1bv32 else 0bv32);assume 0bv32 != (if ~bvslt32(~s~0, ~n~0) then 1bv32 else 0bv32); {49#(= main_~i~0 (_ bv0 32))} is VALID [2018-11-23 10:47:29,819 INFO L273 TraceCheckUtils]: 6: Hoare triple {49#(= main_~i~0 (_ bv0 32))} assume !~bvslt32(~i~0, ~q~0); {53#(not (bvslt (_ bv0 32) main_~q~0))} is VALID [2018-11-23 10:47:29,827 INFO L273 TraceCheckUtils]: 7: Hoare triple {53#(not (bvslt (_ bv0 32) main_~q~0))} ~i~0 := 0bv32;~j~0 := 0bv32; {57#(and (not (bvslt (_ bv0 32) main_~q~0)) (= main_~i~0 (_ bv0 32)))} is VALID [2018-11-23 10:47:29,828 INFO L273 TraceCheckUtils]: 8: Hoare triple {57#(and (not (bvslt (_ bv0 32) main_~q~0)) (= main_~i~0 (_ bv0 32)))} assume !!~bvslt32(~i~0, ~q~0);~j~0 := 0bv32; {30#false} is VALID [2018-11-23 10:47:29,829 INFO L273 TraceCheckUtils]: 9: Hoare triple {30#false} assume !!~bvslt32(~j~0, ~s~0);call #t~mem4 := read~intINTTYPE4(~#A~0.base, ~bvadd32(~bvadd32(~#A~0.offset, ~bvmul32(~i~0, ~bvmul32(4bv32, ~n~0))), ~bvmul32(4bv32, ~j~0)), 4bv32); {30#false} is VALID [2018-11-23 10:47:29,829 INFO L256 TraceCheckUtils]: 10: Hoare triple {30#false} call __VERIFIER_assert((if #t~mem4 == ~bvadd32(~bvadd32(~i~0, ~j~0), ~C~0) then 1bv32 else 0bv32)); {30#false} is VALID [2018-11-23 10:47:29,829 INFO L273 TraceCheckUtils]: 11: Hoare triple {30#false} ~cond := #in~cond; {30#false} is VALID [2018-11-23 10:47:29,830 INFO L273 TraceCheckUtils]: 12: Hoare triple {30#false} assume 0bv32 == ~cond; {30#false} is VALID [2018-11-23 10:47:29,830 INFO L273 TraceCheckUtils]: 13: Hoare triple {30#false} assume !false; {30#false} is VALID [2018-11-23 10:47:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:47:29,834 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:47:29,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:47:29,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:47:29,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 10:47:29,850 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:47:29,854 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:47:29,930 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:47:29,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:47:29,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:47:29,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:47:29,942 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2018-11-23 10:47:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:47:30,558 INFO L93 Difference]: Finished difference Result 59 states and 88 transitions. [2018-11-23 10:47:30,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:47:30,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-23 10:47:30,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:47:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:47:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2018-11-23 10:47:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:47:30,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2018-11-23 10:47:30,583 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 88 transitions. [2018-11-23 10:47:31,207 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:47:31,221 INFO L225 Difference]: With dead ends: 59 [2018-11-23 10:47:31,221 INFO L226 Difference]: Without dead ends: 29 [2018-11-23 10:47:31,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:47:31,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-23 10:47:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2018-11-23 10:47:31,286 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:47:31,286 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 22 states. [2018-11-23 10:47:31,287 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 22 states. [2018-11-23 10:47:31,287 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 22 states. [2018-11-23 10:47:31,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:47:31,293 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2018-11-23 10:47:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2018-11-23 10:47:31,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:47:31,295 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:47:31,295 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 29 states. [2018-11-23 10:47:31,295 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 29 states. [2018-11-23 10:47:31,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:47:31,300 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2018-11-23 10:47:31,300 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2018-11-23 10:47:31,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:47:31,301 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:47:31,302 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:47:31,302 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:47:31,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-23 10:47:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-11-23 10:47:31,306 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2018-11-23 10:47:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:47:31,307 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-11-23 10:47:31,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:47:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-11-23 10:47:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 10:47:31,308 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:47:31,308 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:47:31,309 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:47:31,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:47:31,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1374604441, now seen corresponding path program 1 times [2018-11-23 10:47:31,310 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:47:31,310 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:47:31,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:47:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:47:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:47:31,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:47:31,552 INFO L256 TraceCheckUtils]: 0: Hoare triple {247#true} call ULTIMATE.init(); {247#true} is VALID [2018-11-23 10:47:31,553 INFO L273 TraceCheckUtils]: 1: Hoare triple {247#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {247#true} is VALID [2018-11-23 10:47:31,553 INFO L273 TraceCheckUtils]: 2: Hoare triple {247#true} assume true; {247#true} is VALID [2018-11-23 10:47:31,553 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {247#true} {247#true} #73#return; {247#true} is VALID [2018-11-23 10:47:31,554 INFO L256 TraceCheckUtils]: 4: Hoare triple {247#true} call #t~ret5 := main(); {247#true} is VALID [2018-11-23 10:47:31,554 INFO L273 TraceCheckUtils]: 5: Hoare triple {247#true} havoc ~i~0;havoc ~j~0;~m~0 := 1000bv32;~n~0 := 1500bv32;havoc ~q~0;havoc ~s~0;call ~#A~0.base, ~#A~0.offset := #Ultimate.alloc(~bvmul32(~bvmul32(4bv32, ~n~0), ~m~0));~C~0 := #t~nondet1;havoc #t~nondet1;~q~0 := #t~nondet2;havoc #t~nondet2;~s~0 := #t~nondet3;havoc #t~nondet3;~i~0 := 0bv32;~j~0 := 0bv32;assume 0bv32 != (if ~bvslt32(~q~0, ~m~0) then 1bv32 else 0bv32);assume 0bv32 != (if ~bvslt32(~s~0, ~n~0) then 1bv32 else 0bv32); {247#true} is VALID [2018-11-23 10:47:31,573 INFO L273 TraceCheckUtils]: 6: Hoare triple {247#true} assume !!~bvslt32(~i~0, ~q~0);~j~0 := 0bv32; {270#(= main_~j~0 (_ bv0 32))} is VALID [2018-11-23 10:47:31,586 INFO L273 TraceCheckUtils]: 7: Hoare triple {270#(= main_~j~0 (_ bv0 32))} assume !~bvslt32(~j~0, ~s~0); {274#(not (bvslt (_ bv0 32) main_~s~0))} is VALID [2018-11-23 10:47:31,587 INFO L273 TraceCheckUtils]: 8: Hoare triple {274#(not (bvslt (_ bv0 32) main_~s~0))} ~i~0 := ~bvadd32(1bv32, ~i~0); {274#(not (bvslt (_ bv0 32) main_~s~0))} is VALID [2018-11-23 10:47:31,592 INFO L273 TraceCheckUtils]: 9: Hoare triple {274#(not (bvslt (_ bv0 32) main_~s~0))} assume !~bvslt32(~i~0, ~q~0); {274#(not (bvslt (_ bv0 32) main_~s~0))} is VALID [2018-11-23 10:47:31,593 INFO L273 TraceCheckUtils]: 10: Hoare triple {274#(not (bvslt (_ bv0 32) main_~s~0))} ~i~0 := 0bv32;~j~0 := 0bv32; {274#(not (bvslt (_ bv0 32) main_~s~0))} is VALID [2018-11-23 10:47:31,594 INFO L273 TraceCheckUtils]: 11: Hoare triple {274#(not (bvslt (_ bv0 32) main_~s~0))} assume !!~bvslt32(~i~0, ~q~0);~j~0 := 0bv32; {287#(and (= main_~j~0 (_ bv0 32)) (not (bvslt (_ bv0 32) main_~s~0)))} is VALID [2018-11-23 10:47:31,595 INFO L273 TraceCheckUtils]: 12: Hoare triple {287#(and (= main_~j~0 (_ bv0 32)) (not (bvslt (_ bv0 32) main_~s~0)))} assume !!~bvslt32(~j~0, ~s~0);call #t~mem4 := read~intINTTYPE4(~#A~0.base, ~bvadd32(~bvadd32(~#A~0.offset, ~bvmul32(~i~0, ~bvmul32(4bv32, ~n~0))), ~bvmul32(4bv32, ~j~0)), 4bv32); {248#false} is VALID [2018-11-23 10:47:31,596 INFO L256 TraceCheckUtils]: 13: Hoare triple {248#false} call __VERIFIER_assert((if #t~mem4 == ~bvadd32(~bvadd32(~i~0, ~j~0), ~C~0) then 1bv32 else 0bv32)); {248#false} is VALID [2018-11-23 10:47:31,596 INFO L273 TraceCheckUtils]: 14: Hoare triple {248#false} ~cond := #in~cond; {248#false} is VALID [2018-11-23 10:47:31,596 INFO L273 TraceCheckUtils]: 15: Hoare triple {248#false} assume 0bv32 == ~cond; {248#false} is VALID [2018-11-23 10:47:31,597 INFO L273 TraceCheckUtils]: 16: Hoare triple {248#false} assume !false; {248#false} is VALID [2018-11-23 10:47:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:47:31,600 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (3)] Exception during sending of exit command (exit): Broken pipe [2018-11-23 10:47:31,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:47:31,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:47:31,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-23 10:47:31,605 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:47:31,605 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:47:31,649 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:47:31,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:47:31,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:47:31,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:47:31,650 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 5 states. [2018-11-23 10:47:32,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:47:32,227 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2018-11-23 10:47:32,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:47:32,227 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-23 10:47:32,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:47:32,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:47:32,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2018-11-23 10:47:32,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:47:32,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2018-11-23 10:47:32,235 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 61 transitions. [2018-11-23 10:47:32,457 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:47:32,460 INFO L225 Difference]: With dead ends: 49 [2018-11-23 10:47:32,460 INFO L226 Difference]: Without dead ends: 27 [2018-11-23 10:47:32,461 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:47:32,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-23 10:47:32,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-11-23 10:47:32,511 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:47:32,512 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 24 states. [2018-11-23 10:47:32,512 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 24 states. [2018-11-23 10:47:32,512 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 24 states. [2018-11-23 10:47:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:47:32,516 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2018-11-23 10:47:32,516 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-11-23 10:47:32,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:47:32,517 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:47:32,517 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 27 states. [2018-11-23 10:47:32,518 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 27 states. [2018-11-23 10:47:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:47:32,521 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2018-11-23 10:47:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-11-23 10:47:32,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:47:32,522 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:47:32,522 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:47:32,522 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:47:32,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 10:47:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-11-23 10:47:32,524 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2018-11-23 10:47:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:47:32,525 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-11-23 10:47:32,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:47:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-11-23 10:47:32,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 10:47:32,526 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:47:32,526 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:47:32,526 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:47:32,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:47:32,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1853309542, now seen corresponding path program 1 times [2018-11-23 10:47:32,527 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:47:32,528 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:47:32,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:47:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:47:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:47:32,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:47:32,953 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:47:32,954 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: zero is neutral element of plus operator at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:95) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.lambda$0(UltimateNormalFormUtils.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker$MyWalker.walk(SubtermPropertyChecker.java:63) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker.isPropertySatisfied(SubtermPropertyChecker.java:121) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.respectsUltimateNormalForm(UltimateNormalFormUtils.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.pqe.XnfDer.derSimple(XnfDer.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.pqe.XnfDer.tryToEliminate(XnfDer.java:97) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.applyEliminationTechniques(QuantifierPusher.java:302) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:215) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPush(QuantifierPusher.java:134) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:107) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.TermDomainOperationProvider.constructQuantifiedFormula(TermDomainOperationProvider.java:115) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:103) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 10:47:32,959 INFO L168 Benchmark]: Toolchain (without parser) took 5083.60 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -568.7 MB). Peak memory consumption was 139.6 MB. Max. memory is 7.1 GB. [2018-11-23 10:47:32,962 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 10:47:32,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-11-23 10:47:32,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 10:47:32,963 INFO L168 Benchmark]: Boogie Preprocessor took 69.95 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 10:47:32,964 INFO L168 Benchmark]: RCFGBuilder took 696.77 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -745.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2018-11-23 10:47:32,965 INFO L168 Benchmark]: TraceAbstraction took 3875.78 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 7.1 GB. [2018-11-23 10:47:32,970 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 401.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.95 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 696.77 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -745.2 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3875.78 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 163.3 MB). Peak memory consumption was 163.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: zero is neutral element of plus operator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: zero is neutral element of plus operator: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:95) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...